一、Httpclient调用

OAModule 模块类添加扩展AddHttpClient

public class OAModule : AbpModule
{
    public override void ConfigureServices(ServiceConfigurationContext context)
    {
        context.Services.AddControllers();
        context.Services.AddSwaggerGen(c =>
        {
            c.SwaggerDoc("v1", new OpenApiInfo { Title = "XT.ABP.Web", Version = "v1" });
        });
        context.Services.AddHttpClient(); // 把httpclient加载IOC

    }
}

调用

public HttpClient _httpClient { set; get; }

#region 1、httpClient调用
{
    //1、查询请求
    var httpResponseMessage = _httpClient.GetAsync("https://localhost:44389/api/EBusiness/product").Result;
    string productContent = httpResponseMessage.Content.ReadAsStringAsync().Result;

    // 2、json转换成对象
    var products = JsonConvert.DeserializeObject<PagedResultDto<ProductDto>>(productContent);
    return products;

}
#endregion

二、动态C# API客户端

1、在电商系统中的YDT.EBusiness.HttpApi.Client模块中的EBusinessHttpApiClientModule引入

[DependsOn(
    typeof(EBusinessApplicationContractsModule),
    typeof(AbpAccountHttpApiClientModule),
    typeof(AbpIdentityHttpApiClientModule),
    typeof(AbpPermissionManagementHttpApiClientModule),
    typeof(AbpTenantManagementHttpApiClientModule),
    typeof(AbpFeatureManagementHttpApiClientModule),
    typeof(AbpSettingManagementHttpApiClientModule)
)]
public class EBusinessHttpApiClientModule : AbpModule
{
    public const string RemoteServiceName = "EBusiness";

    public override void PreConfigureServices(ServiceConfigurationContext context)
    {
        PreConfigure<AbpHttpClientBuilderOptions>(options =>
        {
            options.ProxyClientBuildActions.Add((remoteServiceName, clientBuilder) =>
            {
                clientBuilder.AddTransientHttpErrorPolicy(policyBuilder =>
                    policyBuilder.WaitAndRetryAsync(
                        3,
                        i => TimeSpan.FromSeconds(Math.Pow(2, i))
                    )
                );
            });
        });
    }

    public override void ConfigureServices(ServiceConfigurationContext context)
    {
        context.Services.AddHttpClientProxies(
            typeof(EBusinessApplicationContractsModule).Assembly,
            RemoteServiceName
        );
    }
}

2、在OA系统中引入EBusinessHttpApiClientModule模块并在配置文件appsettings.json中添加

"RemoteServices": {
  "EBusiness": {
    "BaseUrl": "https://localhost:44389/"
  },
  "ERP": {
    "BaseUrl": "https://localhost:44389/"
  },
  "OA": {
    "BaseUrl": "https://localhost:44389/"
  }
}

3、然后在OA系统中添加项目引用引入YDT.EBusiness.HttpApi.Client

4、然后在OA系统中OAModule 类上引入

[DependsOn(typeof(EBusinessHttpApiClientModule))]
public class OAModule : AbpModule
{}

5、然后使用OA系统中OAController中引入

/// <summary>
/// Web API控制器
/// </summary>
[ApiController]
[Route("[controller]")]
public class OAController : ControllerBase
{
    private static readonly string[] Summaries = new[]
    {
        "Freezing", "Bracing", "Chilly", "Cool", "Mild", "Warm", "Balmy", "Hot", "Sweltering", "Scorching"
    };
    public IProductAppService _productAppService { set; get; }
    /// <summary>
    /// 1、获取商品API
    /// 总结：如果使用的ABP vNext HttpClient开发的项目，就必须使用动态API客户端远程。
    /// 1、只能C#语音调用。不能夸语言
    /// 2、如果OA是Java，就无法调用了。
    ///     gRPC来实现。
    /// </summary>
    /// <returns></returns>
    [HttpGet]
    public PagedResultDto<ProductDto> Get()
    {
        #region 1、httpClient调用
        {
            /*//1、查询请求
            var httpResponseMessage = _httpClient.GetAsync("https://localhost:44389/api/EBusiness/product").Result;
            string productContent = httpResponseMessage.Content.ReadAsStringAsync().Result;

            // 2、json转换成对象
            var products = JsonConvert.DeserializeObject<PagedResultDto<ProductDto>>(productContent);
            return products;*/

        }
        #endregion

        #region 2、ProductService直接调用
        {
            //1、查询请求
            return _productService.GetProducts();
        }
        #endregion


        #region 2、动态API调用
        {
            var products = _productAppService.GetListAsync(new PagedAndSortedResultRequestDto()).Result;
            return products;
        }
        #endregion
       
    }
}